Trégarvan Weather & Climate: Best Time to Visit

In Trégarvan, seasonal changes bring about a moderate variation in temperatures. Average maximum daytime temperatures range from a pleasant 20°C (68°F) in August, the warmest time of the year, to a chilly 11°C (52°F) during cooler months like February.

At night, you can expect temperatures ranging from 15°C (59°F) in August to around 6°C (43°F) during February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Trégarvan has a notably wet climate with abundant precipitation, recording 1175 mm (46 in) of rainfall per year. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, December it receives high rainfall, averaging 147 mm (5.8 in) of precipitation, recorded across 21 rainy days. In contrast, the driest month July brings less rainfall, with 62 mm (2.4 in) over 13 rainy days. For more details, please visit our Trégarvan Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Trégarvan. While July receives considerable daily sunshine with up to 7.6 hours, December marks the darkest time of the year, where sunshine is scarce with only 2.1 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The city experiences its highest humidity in January, reaching 86%. In April, the humidity drops to its lowest level at 81%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year